Ford alternator overcharging Which is why I'm thinking it is the ECM because that did not fix it. The alternator is now charging high 13 or low 14 volts. Decided to disconnect PCM connector from it, drops from 14. First it was battery, then vr, then alternator finally died about a year later. By taking my foot off the accelerator or turning on various devices like the fan on high I could get the needle to come down. 2005 ford 500 replaced Alternator and battery over charging 5 Answers. Drive Belt Problems: A loose or worn drive belt can prevent the alternator from functioning correctly, reducing its charging capacity. 3-14. Overcharging can be caused by a bad voltage regulator, a faulty wiring, or a defective alternator. The guy that sold me the battery said the Alternator might be overcharging based on the fluid coming out of the vents with the old battery. There was a code for transmission but he cleared it after changing the alternator and it never came back. Skip to content. This are purposely built to be "non rebuildable" you'll end up replacing alternators to alternators if you don't get it Seemed to be in a limp mode. 1997 - 2003 F150 - alternator overcharging - 1997 F150 - 4. 3L IDI & 6. Voltage fluctuated between 13. An overcharging alternator can damage the battery and electrical components. I run my headlights on high beam and no other accessories. Car ran fine for 6 days and did the same exact thing. Let’s look a little closer at these possibilities to see if yo We've taken it back and the garage have found the alternator is over charging at 14. 3L Power Stroke Diesel - Alternator Overcharging? - ok so long story short, on my journey back from camp yesterday my alternator went, I managed to get to a dealershipwith nothing working in the truck just it running, and they changed the alternator, so I continued on my way and now it seems to HOW TO FIX AN OVERCHARGING ALTERNATOR. 1. . the car is overcharging the batteries and killing them. An OBD II diagnosis will likely reveal a P2504 code: ‘Charging System Voltage High. Ford F-150 / F-Series Generations. Thread Tools 1999- Ford 7. What is going on here? 2005 FORD Fivehundred SE 6 speed auto FWD Traction control. 9. Battery light on my Ex. 8 for the rest of the night. Checked voltage at the Everything was fine for the first week and then last night on the way home, all dash board operation quit, lights indicators, everything, then they came back on, this was happening pretty steadily, I monitored the voltage output from the tuner display and it was reading 14. Light is off after starting and only comes on when I shift into gear or press the brake. Alb's reply came in as i was typing my reply so it looks like it is not the alternator. 2 you could disconnect the alternator completely, and add a small plug in trickle charger to keep the battery charged when it is parked. Intermittent Battery Light. J. 7. 4 for a few min. 3 at 2000 rpm it jumps to 18volts or high and battery light comes on and sets code po622 Well, I have been running a Gen 1 Aluminator, that came with the alternator installed from Ford. I replaced the battery with a new 1000 cranking amp Interstate battery. 5-14v. 5 at idle to 13. Escape & Escape Hybrid - 09 3. my last overcharging issue was bad voltage regulator i am now on my 3rd alternator lol. Will have the alternator taken off and checked and go from there. What my question is, is this a common problem with Focus's ? What wider issue could be causing the alternator to be overcharging, because both the battery and alternator are new. Once I've slowed to a near stop it will turn off. ’ How To Check If Your Alternator Is alternator overcharging update After not being able to find the problem in the wiring or the parts, I replaced the wiring harness for the alternator, headlamps, park lights, turn signals, and fog lights. 1st didnt charge, 2nd overcharged. Everything worked fine for several https://amzn. 2. The alternator has definitely gone - sounds like it has been overcharging and has caused other problems, you need to get a decent auto electrician to check it out as I wonder if some other damage has been done which has caused the flat battery. The alternator was replaced earlier Ford Focus Club ; Focus overcharging Focus overcharging. 4L, 6. Voltage across the battery is not increasing when the engine is running. The battery is brand new as well. New battery as well because the old one was bad. Installed a new alternator and thought everything was fine. About a week ago my battery went dead overnight. I had a friend who owns an alternator shop check it out while the (reconditioned) battery was in it. The issue doesn’t happen when idling or at very low revs, but at its worst only a touch on the accelerator makes the internal light get brighter and the power Those 2nd gen Ford Escapes alternator is controlled by the ECU and only ways to fix it right is getting the alternator straight from Ford with your VIN to match properly. I’ve seen a few temporary bypass solutions to the problem, but I don’t recommend doing that. GEODON. While driving it today the battery light came on and the guage was topped out. Dec 8, 2010 08:00 AM. systems while the engine is running It's a fairly simple system, consisting of a battery, alternator, voltage regulator, indicator gauge A problem that is not as easy to diagnose is overcharging, After installing dealer said issue wasn't the alternator as the original problem was that the original alternator was overcharging and still is with the new alternator. I have been running it for several, more than 4 years, with the volt gauge reading 15+ volts. Alternator overcharging is nearly always only fixed by swapping out the damaged alternator. 1999 - 2003 7. 5. The auto electrician tested the wiring continuity between the battery, ECU & 1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks Alternator overcharging 17volts. 7v dropping this clearly took out the regulator. 5v Ford 6. I think your rig might have the Battery Maintenance System. 0L powerstroke overcharging - I have a 04 Excursion Diesel that is an electrical nightmare. Everything shuts down,das,radio,ex, the battery light comes on,the check engine light comes on, but when you check everything,it is still charging,and that overcharging code comes up. This means the fix should be as simple as installing a new alternator. Well now it’s reading 15. Since then I've replaced the battery, alternator harness, and cleaned all connections. If you're worried about overcharging put an inline fuse between the alternator and the battery I think If your car’s alternator is overcharging, you will most likely see a battery light on your dashboard. In this video you will learn the common causes, why the battery is overheating and repairs to fix the issue Probably worth getting the alternator checked out and if it is overcharging it needs to be changed. After you find out why your alternator is overcharging now, you need to fix the overcharging In general, the symptoms of an overcharging alternator include a red battery light on the dashboard, a check engine light, blown fuses and bulbs, and damage to the car battery. Whether the internal regulator can be replaced like many Ford alts from the outside, I don't know. I'm no expert, but if your alternator is pushing out 16V @2k revs, then I would say that the built-in regulator is faulty, and the result could cause a lot of issues with the electronics in your van, as well as a lot of blown bulbs Normal running voltage should be around 14. As long as you don't need lights for any significant ammount of time, and only need to start the engine, this will work. So if it is overcharging, 2006 f150 ford 5. It's charging at max output, the indicator gauge is pegged all the way to the right at full charge. Hi. I thought this solved everything, as the new unit is charging the battery consistently between 14. 5 volts and the car was runnng good so I thought it was fixed and then it shot up to 18v Put a brand new battery in as When they tested at the alternator end it said it wasn't being charged at all but testing at the battery's end it was reading around 15. Finally thought problem was fixed but now instead of having my gauges and A/C The site for Ford truck owners, by Ford truck owners. Mark helpful. I have a 1992 f-150 with a 300 straight six. 5V. New alternator was installed by a shop, FoMoCo branded. 8l. Overcharging or Undercharging: My 2013 Ford Escape has gone through 2 batteries. jtbuck92. While it's possible the alternator I got off eBay is a dud, assuming for now it isn't, and the voltage regulator is also OK, what can I It appears to be either the alternator or the looming. 4. Installed a NEW TECH brand alternator purchased from Summit. Took it to a auto electrician whom said the battery is overcharging at about 15v which according the other forums can cause the dash light problem. Now I pulled the plug out of it and it stopped overcharging and went to 13. 9 instead of 13. All modern vehicles have safety features that will protect your vehicle’s electrical system from an overcharging alternator. 6v charge with the 1999 - 2003 7. You could use an actual volt meter hooked up to a power point or cigar Last night my battery light on the dash started flickering. I am pretty much in the same boat as you. 0 new battery, new untested alternator is overcharging with the pigtail plugged in, odo goes blank, most cluster lights turn off, just goes haywire, checked with a few digital multimeters to confirm, as well as used the odo menu to double confirm, that it’s charging at 16 to 18 volts and just hanging there no matter the Ford Ranger Charging System - General Information, Precautions & Checking Ranger Tech ('19-'23) Ranger Tech ('83-'11) Product / Build Guide: Other Articles: TRS cause overcharging by the alternator). That’s why the alternator was running giving the battery If this does not resolve the issue, I'll try replacement of the alternator with a Motorcraft reman unit (saw on a couple posts that these cars don't like anything but OE alts - 15 volts is normal from the alternator, the system is probably trying to charge that discharged battery quickly. Needless to say the battery is draining and drops after a few days so that I cannot start her. 8 - 14. net is the best Ford F150 Ecoboost Forum with discussions on 2011+ F150 Ecoboost Trucks. 5 while everything was working, when dash went crazy, it was putting out 16. 75 volts at idle. If this input terminal has no connection on it, the alt will then run fully-unregulated, putting out max voltage (your battery being the only thing limiting it from going higher than 16-17 volts). Dealer has been in contact with Ford HQ but they haven't determined the source nor solution. When I If you were getting a reading over 15 volts from the alternator, then it means that the alternator was overcharging the battery, which can be very harmful for both the battery and the electrical system of your vehicle. 2 and the Problem was solved! - 2009-2014 Ford F-150 Any other advice? I plan to buy the pigtail repair kit from ford, although the edge of the intake manifold and all the fuel lines/etc in the way will make repairs a real PITA. then went back down to 13. Reply Subscribe . If you can’t figure out what causes your alternator to overcharge, you will not be able to fix the alternator overcharging issue. We'll cover the symptoms of when an alternator goes bad, and how to diagnose a 1968-Present E-Series Van/Cutaway/Chassis - Alternator overcharging & draining battery - 1991 e150 351w 5. We have brand new motor craft 850cca batteries in it now and 2 reman alternators from motor craft as well. I hooked up my Volt gauge and it was going from 14. I found acid all along the top at the battery caps that must have boiled over and I am seeing 14. But the ALT light still is off when I turn the key to run, and then stays on while the engine is running. After Ford diagnostics the alternator is charging fine but it is logging as an intermittent fault, but they remain confident its the alternator to give the problems that I experience other wise. The charging system is putting out 14. Has anyone experienced this issue and if so, what was the solution - thanks 65 Mercury Marauder 390 - After messing around with a couple voltage regulators and stock alternators, in an attempt to solve an overcharging issue, I finally went with a Tuff Stuff 100-amp single-wire alternator. I have a 2006 F-150 5. New starter got it going again but after cleaning the battery terminals (had to replace one due to Alternator is Overcharging. 3 diesel to a 130 amp 3g alternator from a 1993 Taurus 3. 0L Power Stroke Diesel. Changed the alternator and checked everything, all good. Hi 1996 f150 4. I watched the truck all day in engineering mode and the voltage stayed at about 14. We are worried about an overcharging issues. After I replaced that and the alternator. There's a new alternator, solenoid, interstate battery and belts. A bad alternator can leave your Ford Focus without power and unable to move. I just wanted to come on here and see if any of you had any ideas before I go ahead and buy the new alternator. Took vehicle back to mechanic and he checked the vehicle and found the battery was overcharging. Car is ok today, battery light staying on but no big warning lights before. If there is a fault Am having a similar problem, 2007 Ford Focus 2. It can also cause brighter lights than normal, dashboard warning lights, shortened bulb life, a bulging battery, strange smells from the battery and a bunch of other electrical issues. Battery is less than one year, cables and terminals replaced then as well. The potential cost of not fixing an overcharging alternator is far greater than it is to fix it, regardless of what’s causing it. G-Tech tested 0-60MPH 8. 5 V. Today’s modern vehicles are equipped with an OBD-II system that Is this a standard Ford integral-regulator alternator? I'm kindof just guessing here, but it sounds to me like there's an open circuit in the voltage sense lead to the regulator. Had new alternator installed thinking that was the issue for my overcharging. Tags alternator battery bms underboost wiring. Alternator was worth replacing, but anything additional is just not worth it. Well we changed them and the batteries as they were all reading low as well. ) & the air conditioner would shut off. Yesterday they put on a new alternator and that one shows it is overcharging. 3L Power Stroke Diesel - Alternator Overcharging? - ok so long story short, on my journey back from camp yesterday my alternator went, I managed to get to a dealershipwith nothing working in the truck just it running, and they changed the alternator, so I continued on my way and now it seems to Customer: I have a 2005 Ford Freestyle that is keep having a problem with the alternator overcharging it keeps putting up a code stating electrical overcharge. Had OReillys test the battery, they said Battery good, Alternator good, starter motor Ford Diesels. Post by Fordpickupman13 » Tue Jan 25, 2005 12:18 am. 4 alternator at idle charges 14. 3L, 6. He said I probably needed a new alternator. Alternator overcharging. 0L Power Stroke Diesel - Alternator overcharging - My son has replaced the alternator because it was overcharging at 16. On my way to work this morning the volt gauage was pegged at 18 when i was on the gas and my ABS light would come one. alternator generates a power voltage of between 13V to 14. When you google over charging alternator, it can lead to boiling of I figured out what the problem was! The voltage regulator in the battery blew the 10amp fuse in the junction box. Gauge was acting up a little and the starter was getting sluggish, never did flash the light on the dash though. 6. 0L Power Stroke Diesel - Overcharging? reading 15. 8 to 15. Replace the alternator and restore the system to normal. 9MPH. Try another Voltmeter to confirm voltage output. 0, had a random battery light on last night. 0 problem over charging over 18 to 20 It already has a new PCM and a new alternator, any ideas ? Thank you . In this video we'll talk about the causes of alternator overcharging and what you can do to prevent it and fix it once it's happened. Ford service manuals at least on 60's generation cars usually have a segment with specs and directions on how to setup the regulator to basic specs. mblack49. h) Disconnect the battery cables (negative first, then positive). 2-17. 6L I bought a brand-new alternator from NAPA for ~$220 - not a reman, plus a new belt. 0L Alternator/Battery Troubleshooting. High Idle / Pinging / TPS Voltage Hello! We have a mystery overcharging issue affecting our 2008 Focus mk2. After installing new alternator I noticed that that above 2000 RPM all the warning lights would come on (low tire pressure, traction control, etc. E. I first went through 3 alternators that I thought were faulty but it was actually the little 2 wire connection was bad. 9 volts with all loads on, and the same with no loads on. When he drove it around the block it had changed the voltage to 16. Also bought new battery to put in since the other was at 3 years and had just been really cooked. Is there anyway to 6. I have about 34,000 miles on the pickup, it starts great and runs great. Lousy timing In this article, we'll cover the most common reasons why the check charging system light would come on the Ford Edge dash and their solutions to help you. He said the alternator was overcharging. I assumed that the alternator had failed in an unusual way allowing higher voltage output and boiling off the electrolyte in the battery . Purchased the painless 3g add-on kit, which was very straight forward. checked alternator, no voltage. If the overcharging still occurs, I will probably just take the car to the shop to have the alternator rebuilt or replaced with a rebuild. 4 FX4. 5, I have Battery did not hold charge over night . still not charging I have a 1992 f-150 with a 300 straight six. Thread Tools Search this Thread Alternator overcharging 17volts. Today I tested with a multimeter and I have around 12. 5V at an idle. Anytime I'm accelerating it's making the battery light come on. 38 @85. mechanic by trade. 8v!! Brand new. Note that 1973 - 1979 F-100 & Larger F-Series Trucks - Over charging alternator - Added 75 f250 with 390 auto to my dentside collection. Understanding the potential reasons behind Get a pigtail from your Ford dealer, a roll of Scotch 33 black electrical tape (hardware store, in a round plastic container, The manual states alternator replaceal when overcharging occurs. 1973 - 1979 F-100 & Larger F-Series Trucks - 3G alternator trouble shooting - My son and I performed the 3g alt upgrade when we rewired his truck. A quick check of Rockauto. 0L, 6. 5 ish 2002 Ford Escape XLT 4WD V6 Auto (Sold 26-Oct-2017) 245-70/16 Hankook Dyna-Pro ATM Tires, H&R 1" Lift Springs, KYB GR-2 Struts Once I solve the current drain, I'll see if it has any relation to the alternator overcharging (who knows, both problems occurred simultaneously). Ford reimbursed me for the repair even out of warranty abut it took some calls and letters. My question is: The wiring harness came from a 90GT, is there any difference in this wiring harness? Got it home and was charging at over 17V and cooking battery. 9 I6, 2WD, Auto, approx 140K How To Fix An Overcharging Alternator. Bought brand new alternator as old ones bearings were bad an it was overcharging as well at over 15v bought brand new one 130amp version and this one as well overcharged at almost 17. com and O'Reilly did not turn up a voltage regulator as a replacement part. The lights are brand new 2009 - 2014 Ford F150 - Alternator Overcharging Battery? - I replaced my old battery because it was getting sluggish on the colder mornings and decided to make sure everything was still good after a day on the road. Make sure that your VOLTMETER is CORRECT. 3. Quick links. to/3NebLCc - All-in-One OBDII ScannerIn this short video we will talk about alternator overcharging. Jump to Latest F150Ecoboost. wchain Regular Member Posts: 651 Joined: Thu Mar 12, 2009 3:32 am. Ford Explorer Community - Maintenance - Modifications - Performance Upgrades - Problem Solving Stock alternator charging voltage jtbuck92; June 3, 2011; Modified 2002 - 2005 Explorers; Replies 6 Views 2,196. Alternator overcharging**UPDATE** ALMOST THERE!! I put in a new regulator, and added a ground strap between the engine and the frame. Having said that, I'm on my 3rd one from new (inc the Alternator overcharging. Signs of overcharging include a burning smell, battery corrosion, or even a boiling battery. Alternators don't always go bad in the exact same way. Alernator output varies with rpm, and the regulator flat out limits it so as not to cook the battery. The problem im having is the battery gauge shows a spike( normal reading shows guage at half way And the spike goes almost 3/4 of the way for a few secs and goes back to normal). When he accelerates the gauges on the dash go When you google over charging alternator, it can lead to boiling of the acid in the battery, which in turn can lead to frying of the ecu, which has happened to us already. So the alternator itself is working. New alternator still overcharges. I was told when I returned it that a cell was bad. Jan 25, 2015 08:40 PM. The regulator is built in, so mine was replaced. Etzcutter. The battery tests good as well as the starter. June 4, 2011. The site for Ford truck owners, by Ford truck owners. About six months ago the alternator started overcharging to where the meter was pegged out on 18 and that reading comes from the battery. bad alt, a winding in armature is grounding out and going full charge, seen it many times with rebuilt alts. By jocojohn, June 23, 2008 in Ford Focus Club 1 would a straight alternator swop fix things and is the speedo fault connected to this. The voltage is the same from idle all the way up to 3000 rpms. I didn't think there was a problem with it for the first week or 2 because I was just driving short errands around town, close to home. I replaced the battery and the alternator , Ford makes a claim that it takes like 10 hours to fully charge a dead battery with one, Evening all, Got myself a problem with the alternator. Edit: unplugged, the alternator outputs around 13. 34volts steady. Please Log in or Create an account to join the conversation Or if you don't want to run the An overcharging alternator results in a voltage that’s too high, so the battery light might not come on. bought ford reman. It has done this a few times so I started 1961 - 1966 F-100 & Larger F-Series Trucks - Alternator overcharging!!! - Well, I'm stumped once again guys. Every so often the battery light comes on, then a while later other lights on the dashboard (eg ABS), then the power steering goes. The regulator makes sure that the same alternator that charges adequately at idle also won't overcharge at speed. 0 alternator overcharging - Hi, my 2009 Escape, 3. Power Strokes 1994-1997 General. If you'd like more info My alternator issues started around 30K and went to 50K before the alternator was finally swapped. 5v. My alternator is hung low on the engine, so I guess, it has to be on the lift to access the plug. 6-17. Posts: 9 Joined: Sun Apr 11, 2004 12:03 am Location: Arkansas. Ford tech said my battery was getting overcharged. Discuss performance mods, towing questions, wheels, tires, 1999 - 2016 Super Duty - 6. Battery light is on. FAQ; F150 Forum. When he installed the new one it tested at 14. Why 2007 ford escape xlt alternator overcharging after replacing it with new alternator? 35 people found this helpful. Top. texamania Regular Member Posts: 31 Joined: Tue Dec As well as the oem secondary alternator and a poorly reman primary. 5V and stays there. What Happens If You Don’t Fix An Overcharging Alternator. 8-14. I figured out that it was the internal voltage regulator in the alternator that was causing the problem (via this site) so I replaced the alternator and problem The charging system on your Ford truck performs two basic functions: 1. i checked the voltage at Really need some help with my 2006 ford five hundred Battery is overcharging Had a brand new alternator in it before the overcharging issue and thought it couldn’t be that causing it but replaced it again anyway and for about 5 minutes the battery was at a solid 14. Ford F150 Forum. lakerats. The 2nd battery was a reconditioned battery. 4v Firstly, have you checked your volt meter for accuracy If it's a basic battery powered multimeter, the 1968-Present E-Series Van/Cutaway/Chassis - Ford E250 battery light on, overcharging - I have a 2001 E250. And to make matters 2009 - 2014 Ford F150 - Alternator Overcharging Battery? - I replaced my old battery because it was getting sluggish on the colder mornings and decided to make sure everything was still good after a day on the road. 2004 - 2008 Ford F150 - OverCharging alternator - Hi im new to the site. Since an alternator’s voltage regulator is integrated within the alternator Hello all, replaced a dead alternator on my 2006 Mustang GT, along with a new battery. That’s why check your alternator for overcharging. This alternator is charging 14. Figured it was another alternator, so towed to mechanic since I'm not tackling that stupid alternator location. No reason to suspect they did anything wrong. My '66, 240, A/T, had a unique smell on the way home last 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck Alternator overcharging!!! Reply Subscribe . old cruiser Posted June An overcharging alternator is typically caused by a defective or malfunctioning voltage regulator or transistor, Car owners with Honda models like the CR-V and Accord, and Ford Focus, have documented issues that check readings coming out of alternator vs end of pigtail if its the same, bad alternator. How to make a External Voltage Regulator Written Post:https: Causes of Alternator Failure. Alternator Overcharging the car battery symptoms. When I would come to an idle the gauge would go back to normal. One wire alternators simply have the regulator built into or inside the alternator. Got new alternator and 3 days later, same issue. I figured out what the problem was! The voltage regulator in the battery blew the 10amp fuse in the junction box. Build date: 11/16/2004. Then the other day I went about 70 Pre-Power Stroke Diesel (7. Worn-out Components: Over time, the alternator's components, such as the brushes, bearings, and diodes, can wear out, leading to failure. When the alternator overcharges, it causes the headlights or dashboard lights to flicker. 65V. 8. Battery light was on when I bought the exp. My question is what other possible reasons are there for the alternator overcharging the battery? Thanks in advance for any thoughts! 1996 F-150 XLT Regular Cab, 4. I 2005 ford escape 4wd v6 3. 9L) - 3g alternator overcharging - I just converted my 91 f250 7. 34 1/4 mile 16. Am I correct to assume its the dreaded ford dashboard problem or could something else be to blame. These are the reasons why your car alternator is overcharging. to/3WtNBGE - Alternator testershttps://amzn. The timing of me messing with the fuse box and then the batteries going dead and now having this overcharging issue just seems weird to me. Causes and symptoms for an overcharging alternator and how test and fix It. I have replaced the alternator as well as the battery in my daughters 2005 Ford 500. The problem has to be addressed properly, and the only way to fix an overcharging alternator is to take it I had a new alternator installed today and it's charging up my battery too much. 6-14. 7L Power Stroke Diesel Heavy Duty 6G Series 200 Amp Alternator Upgrade Lonnie . Electrical Systems/Wiring. First of all, an overcharging alternator will kill the battery in a matter of a couple of weeks or sooner, depending on how much you drive. You may also notice a check engine light in many cases. That’s why the alternator was running giving the battery 15Volts constantly. dbxyas epsha ktcban ilqp hqub vpgdd ccimo cnwrn tannv izppyd vkrpmenr amh xoswyfxx psusk hmo